一、基础环境准备
1、集群设备列表
10.240.240.210 client
10.240.240.211 node1 mon1 osd.0
10.240.240.212 node2 mon2 osd.1
10.240.240.213 node3 mon3 osd.2
2、系统环境
[root@client ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.5 (Santiago)
[root@client ~]# uname -r
2.6.32-431.el6.x86_64
3、卸载redhat自带的yum包（用redhat的yum源需注册付费，费时费力，需要卸载redhat的yum包，安装centos的
rpm -qa | grep yum | xargs rpm -e --nodeps
4、安装centos的yum包
可以通过http://mirrors.163.com/centos下载，或http://pan.baidu.com/s/1qW0MbgC下载相关安装包
rpm -ivh python-iniparse-0.3.1-2.1.el6.noarch.rpm
rpm -ivh yum-metadata-parser-1.1.2-16.el6.x86_64.rpm
rpm -ivh yum-3.2.29-40.el6.centos.noarch.rpm yum-plugin-fastestmirror-1.1.30-14.el6.noarch.rpm
编辑一个自己的yum源
[root@node1 ~]# vi /etc/yum.repos.d/my.repo
[base]
name=CentOS-6 - Base - 163.com
baseurl=http://mirrors.163.com/centos/6/os/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#released updates
[updates]
name=CentOS-6 - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6/updates/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that may be useful
[extras]
name=CentOS-6 - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6/extras/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-6 - Plus - 163.com
baseurl=http://mirrors.163.com/centos/6/centosplus/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users
[contrib]
name=CentOS-6 - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/6/contrib/$basearch/
#mirrorlist=http://mirrorlist.centos.org/?release=6&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6
5、更新yum源
yum clean all
yum update -y
二、在所有节点安装ceph的所有的yum源
1、安装软件包key
(1)、release.asc key
rpm --import 'https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc'
（2）、autobuild.asc key
rpm --import 'https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc'
2、安装ceph附加包源ceph-extras.repo，设置priority=2，确保新的包（如qemu）优先级比标准包的高。
vi /etc/yum.repos.d/ceph-extras.repo
[ceph-extras-source]
name=Ceph Extras Sources
baseurl=http://ceph.com/packages/ceph-extras/rpm/rhel6.5/SRPMS
enabled=1
priority=2
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc
3、安装ceph源
vi /etc/yum.repos.d/ceph.repo
[ceph]
name=Ceph packages for $basearch
baseurl=http://ceph.com/rpm/rhel6/$basearch
enabled=1
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc
[ceph-noarch]
name=Ceph noarch packages
baseurl=http://ceph.com/rpm/rhel6/noarch
enabled=1
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc
[ceph-source]
name=Ceph source packages
baseurl=http://ceph.com/rpm/rhel6/SRPMS
enabled=0
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc
4、安装ceph的apache yum源
vi /etc/yum.repos.d/ceph-apache.repo
[apache2-ceph-noarch]
name=Apache noarch packages for Ceph
baseurl=http://gitbuilder.ceph.com/apache2-rpm-rhel6-x86_64-basic/ref/master/
enabled=1
priority=2
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
[apache2-ceph-source]
name=Apache source packages for Ceph
baseurl=http://gitbuilder.ceph.com/apache2-rpm-rhel6-x86_64-basic/ref/master/
enabled=0
priority=2
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
5、安装ceph的ceph-fastcgi yum源
vi /etc/yum.repos.d/ceph-fastcgi.repo
[fastcgi-ceph-basearch]
name=FastCGI basearch packages for Ceph
baseurl=http://gitbuilder.ceph.com/mod_fastcgi-rpm-rhel6-x86_64-basic/ref/master/
enabled=1
priority=2
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
[fastcgi-ceph-noarch]
name=FastCGI noarch packages for Ceph
baseurl=http://gitbuilder.ceph.com/mod_fastcgi-rpm-rhel6-x86_64-basic/ref/master/
enabled=1
priority=2
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
[fastcgi-ceph-source]
name=FastCGI source packages for Ceph
baseurl=http://gitbuilder.ceph.com/mod_fastcgi-rpm-rhel6-x86_64-basic/ref/master/
enabled=0
priority=2
gpgcheck=1
type=rpm-md
gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
6、安装epel yum源
rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm（安装这个在更新yum源的时候有报错）
或者
rpm -Uvh http://mirrors.sohu.com/fedora-epel/6/x86_64/epel-release-6-8.noarch.rpm（在国内推荐用这个，下载速度快）
三、在所有节点安装ceph包
1、安装ceph部署机
yum install -y ceph-deploy
2、安装ceph存储集群
（1）、安装ceph必备软件
yum install -y snappy leveldb gdisk python-argparse gperftools-libs
（2）、安装ceph软件
yum install -y ceph
3、安装ceph对象网关
（1）、安装apache fastcgi 需要yum install httpd mod_fastcgi，安装之前先执行下面的操作
yum install -y yum-plugin-priorities
yum update
安装apache fastcgi
yum install -y httpd mod_fastcgi
（2）、编辑配置文件 httpd.conf
vim /etc/httpd/conf/httpd.conf
ServerName node1
（3）、启动httpd进程
/etc/init.d/httpd restart
（4）、安装SSL (安装此步骤有报错）
yum install -y mod_ssl openssl
openssl x509 -req -days 365 -in ca.csr -signkey ca.key -out ca.crt
cp ca.crt /etc/pki/tls/certs
cp ca.key /etc/pki/tls/private/ca.key
cp ca.csr /etc/pki/tls/private/ca.csr
/etc/init.d/httpd restart
（10）、Add Wildcard to DNS （The address of the DNS must also be specified in the Ceph configuration file with the rgw dns name = {hostname} setting.
address=/.ceph-node/192.168.0.1
（11）、安装ceph对象网关
yum install -y ceph-radosgw ceph
（12）、安装ceph对象网关代理
yum install -y radosgw-agent
4、为块存储安装虚拟化软件
（1）、如果之前有qemu模块先删除，确保之后安装的是最完善的
yum remove -y qemu-kvm qemu-kvm-tools qemu-img
（2）、卸载后重新安装qemu
yum install -y qemu-kvm qemu-kvm-tools qemu-img
（3）、安装qemu客户代理
yum install -y qemu-guest-agent
(4)、安装libvirt软件包
yum install -y libvirt
（5）、在所有节点安装ceph依赖的软件及模块
# yum install *argparse* -y
#yum install redhat-lsb -y
# yum install xfs* -y
四、搭建ceph集群 （此步骤可以用附录中的ceph快速脚本安装）
建立第一个mon节点
1、登录监控节点node1节点
ls /etc/ceph #查看ceph配置文件目录是否有东西
2、创建ceph配置文件并配置ceph配置文件内的内容
touch /etc/ceph/ceph.conf #创建一个ceph配置文件
[root@client ~]# uuidgen #执行此命令可以得到一个唯一的标识，作为ceph集群ID
f11240d4-86b1-49ba-aacc-6d3d37b24cc4
fsid = f11240d4-86b1-49ba-aacc-6d3d37b24cc4 #此标识就是上面得到的，把此条命令加入ceph的配置文件
mon initial members = node1,node2,node3 #node1、node2、node3作为ceph集群的监控节点，把此条命令加入到ceph配置文件
mon host = 10.240.240.211,10.240.240.212,10.240.240.213 #监控节点的地址，把此条命令加入ceph的配置文件中
按下面的内容编辑ceph配置文件
vi /etc/ceph/ceph.conf
[global]
fsid = f11240d4-86b1-49ba-aacc-6d3d37b24cc4
mon initial members = node1,node2,node3
mon host = 10.39.101.1,10.39.101.2,10.39.101.3
public network = 10.39.101.0/24
auth cluster required = cephx
auth service required = cephx
auth client required = cephx
osd journal size = 1024
filestore xattr use omap = true
osd pool default size = 3
osd pool default min size = 1
osd crush chooseleaf type = 1
osd_mkfs_type = xfs
max mds = 5
mds max file size = 100000000000000
mds cache size = 1000000
mon osd down out interval = 900 #设置osd节点down后900s，把此osd节点逐出ceph集群，把之前映射到此节点的数据映射到其他节点。
cluster_network = 10.39.102.0/24
[mon]
mon clock drift allowed = .50 #把时钟偏移设置成0.5s，默认是0.05s,由于ceph集群中存在异构PC，导致时钟偏移总是大于0.05s，为了方便同步直接把时钟偏移设置成0.5s
3、在node1创建各种密钥
ceph-authtool --create-keyring /tmp/ceph.mon.keyring --gen-key -n mon. --cap mon 'allow *' #为监控节点创建管理密钥
ceph-authtool --create-keyring /etc/ceph/ceph.client.admin.keyring --gen-key -n client.admin --set-uid=0 --cap mon 'allow *' --cap osd 'allow *' --cap mds 'allow' #为ceph amin用户创建管理集群的密钥并赋予访问权限
ceph-authtool /tmp/ceph.mon.keyring --import-keyring /etc/ceph/ceph.client.admin.keyring #添加client.admin key到 ceph.mon.keyring
4、在node1监控节点创建一个mon数据目录
mkdir -p /var/lib/ceph/mon/ceph-node1
5、在node1创建一个boot引导启动osd的key
mkdir -p /var/lib/ceph/bootstrap-osd/
ceph-authtool -C /var/lib/ceph/bootstrap-osd/ceph.keyring
6、在node1节点上初始化mon节点，执行下面的命令
ceph-mon --mkfs -i node1 --keyring /tmp/ceph.mon.keyring
7、为了防止重新被安装创建一个空的done文件
touch /var/lib/ceph/mon/ceph-node1/done
8、创建一个空的初始化文件
touch /var/lib/ceph/mon/ceph-node1/sysvinit
9、启动ceph进程
/sbin/service ceph -c /etc/ceph/ceph.conf start mon.node1
10、查看asok mon状态
[root@node1 ~]# ceph --cluster=ceph --admin-daemon /var/run/ceph/ceph-mon.node1.asok mon_status
建立第二个mon节点
1、复制node1节点的/etc/ceph目录到node2
scp /etc/ceph/* node2:/etc/ceph/
2、在node2节点上新建一个/var/lib/ceph/bootstrap-osd/目录
mkdir /var/lib/ceph/bootstrap-osd/
3、复制node1节点上的/var/lib/ceph/bootstrap-osd/ceph.keyring文件到node2
scp /var/lib/ceph/bootstrap-osd/ceph.keyring node2:/var/lib/ceph/bootstrap-osd/
4、复制node1节点上的/tmp/ceph.mon.keyring
scp /tmp/ceph.mon.keyring node2:/tmp/
5、在node2节点上建立一个/var/lib/ceph/mon/ceph-node2目录
mkdir -p /var/lib/ceph/mon/ceph-node2
6、在node2节点上初始化mon节点，执行下面的命令
ceph-mon --mkfs -i node2 --keyring /tmp/ceph.mon.keyring
7、为了防止重新被安装创建一个空的done文件
touch /var/lib/ceph/mon/ceph-node2/done
8、创建一个空的初始化文件
touch /var/lib/ceph/mon/ceph-node2/sysvinit
9、启动ceph进程
/sbin/service ceph -c /etc/ceph/ceph.conf start mon.node2
建立第三个mon节点
1、复制node1节点的/etc/ceph目录到node3
scp /etc/ceph/* node3:/etc/ceph/
2、在node3节点上新建一个/var/lib/ceph/bootstrap-osd/目录
mkdir /var/lib/ceph/bootstrap-osd/
3、复制node1节点上的/var/lib/ceph/bootstrap-osd/ceph.keyring文件到node3
scp /var/lib/ceph/bootstrap-osd/ceph.keyring node3:/var/lib/ceph/bootstrap-osd/
4、复制node1节点上的/tmp/ceph.mon.keyring
scp /tmp/ceph.mon.keyring node3:/tmp/
5、在node3节点上建立一个/var/lib/ceph/mon/ceph-node3目录
mkdir -p /var/lib/ceph/mon/ceph-node3
6、在node3节点上初始化mon节点，执行下面的命令
ceph-mon --mkfs -i node3 --keyring /tmp/ceph.mon.keyring
7、为了防止重新被安装创建一个空的done文件
touch /var/lib/ceph/mon/ceph-node3/done
8、创建一个空的初始化文件
touch /var/lib/ceph/mon/ceph-node3/sysvinit
9、启动ceph进程
/sbin/service ceph -c /etc/ceph/ceph.conf start mon.node3
1、查看集群状态
[root@node1 ~]# ceph -w
cluster f11240d4-86b1-49ba-aacc-6d3d37b24cc4
health HEALTH_ERR 192 pgs stuck inactive; 192 pgs stuck unclean; no osds
monmap e2: 3 mons at {node1=10.240.240.211:6789/0,node2=10.240.240.212:6789/0,node3=10.240.240.213:6789/0}, election epoch 8, quorum 0,1,2 node1,node2,node3
osdmap e1: 0 osds: 0 up, 0 in
pgmap v2: 192 pgs, 3 pools, 0 bytes data, 0 objects
0 kB used, 0 kB / 0 kB avail
192 creating
2、查看ceph pool
ceph osd lspools
添加osd节点
添加第一块osd节点
1、创建一个OSD，生成一个osd number
[root@node1 ~]# ceph osd create
0
2、为osd节点创建一个osd目录
[root@node1 ~]# mkdir -p /var/lib/ceph/osd/ceph-0
3、格式化已准备好的osd硬盘（格式化为xfs格式）
[root@node1 ~]# mkfs.xfs -f /dev/sdb
meta-data=/dev/sdb isize=256 agcount=4, agsize=1310720 blks
= sectsz=512 attr=2, projid32bit=0
data = bsize=4096 blocks=5242880, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
4、挂在目录
[root@node1 ~]# mount -o user_xattr /dev/sdb /var/lib/ceph/osd/ceph-0
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
执行上面的命令会报错
解决的办法是：用下面的两条命令替代上面的一条命令。
[root@node1 ~]# mount /dev/sdb /var/lib/ceph/osd/ceph-0
[root@node1 ~]# mount -o remount,user_xattr /var/lib/ceph/osd/ceph-0
查看挂载的情况
[root@node1 ~]# mount
/dev/sda2 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /boot type ext4 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
vmware-vmblock on /var/run/vmblock-fuse type fuse.vmware-vmblock (rw,nosuid,nodev,default_permissions,allow_other)
/dev/sdb on /var/lib/ceph/osd/ceph-1 type xfs (rw,user_xattr)
把上面的挂载信息写入分区表
[root@node1 ~]# vi /etc/fstab
/dev/sdb /var/lib/ceph/osd/ceph-0 xfs defaults 0 0
/dev/sdb /var/lib/ceph/osd/ceph-0 xfs remount,user_xattr 0 0
5、初始化osd数据目录
[root@node1 ~]# ceph-osd -i 0 --mkfs --mkkey
6、注册osd的认证密钥
[root@node1 ~]# ceph auth add osd.0 osd 'allow *' mon 'allow profile osd' -i /var/lib/ceph/osd/ceph-0/keyring
7、为此osd节点创建一个crush map
[root@node1 ~]# ceph osd crush add-bucket node1 host
added bucket node1 type host to crush map
8、Place the Ceph Node under the root default
[root@node1 ~]# ceph osd crush move node1 root=default
moved item id -2 name 'node1' to location {root=default} in crush map
9、
[root@node1 ~]# ceph osd crush add osd.0 1.0 host=node1
add item id 0 name 'osd.0' weight 1 at location {host=node1} to crush map
10、创建一个初始化目录
[root@node1 ~]# touch /var/lib/ceph/osd/ceph-0/sysvinit
11、启动osd进程
/etc/init.d/ceph start osd.0
12、查看osd目录树
[root@node1 ~]# ceph osd tree
# id weight type name up/down reweight
-1 1 root default
-2 1 host node1
0 1 osd.0 up 1
添加第二个osd节点
1、创建一个OSD，生成一个osd number
[root@node2 ~]# ceph osd create
1
2、为osd节点创建一个osd目录
[root@node2 ~]# mkdir -p /var/lib/ceph/osd/ceph-1
3、格式化已准备好的osd硬盘，并挂在到上一步创建的osd目录（格式化为xfs格式）
[root@node2 ~]# mkfs.xfs -f /dev/sdb
meta-data=/dev/sdb isize=256 agcount=4, agsize=1310720 blks
= sectsz=512 attr=2, projid32bit=0
data = bsize=4096 blocks=5242880, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
4、挂在目录
[root@node2 ~]# mount -o user_xattr /dev/sdb /var/lib/ceph/osd/ceph-1
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
执行上面的命令会报错
解决的办法是：用下面的两条命令替代上面的一条命令。
[root@node2 ~]# mount /dev/sdb /var/lib/ceph/osd/ceph-1
[root@node2 ~]# mount -o remount,user_xattr /var/lib/ceph/osd/ceph-1
查看挂载的情况
[root@node2 ~]# mount
/dev/sda2 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /boot type ext4 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
vmware-vmblock on /var/run/vmblock-fuse type fuse.vmware-vmblock (rw,nosuid,nodev,default_permissions,allow_other)
/dev/sdb on /var/lib/ceph/osd/ceph-1 type xfs (rw,user_xattr)
把上面的挂载信息写入分区表
[root@node2 ~]# vi /etc/fstab
/dev/sdb /var/lib/ceph/osd/ceph-1 xfs defaults 0 0
/dev/sdb /var/lib/ceph/osd/ceph-1 xfs remount,user_xattr 0 0
5、初始化osd数据目录
[root@node2 ~]# ceph-osd -i 1 --mkfs --mkkey
2014-06-25 23:17:37.633040 7fa8fd06b7a0 -1 journal FileJournal::_open: disabling aio for non-block journal. Use journal_force_aio to force use of aio anyway
2014-06-25 23:17:37.740713 7fa8fd06b7a0 -1 journal FileJournal::_open: disabling aio for non-block journal. Use journal_force_aio to force use of aio anyway
2014-06-25 23:17:37.744937 7fa8fd06b7a0 -1 filestore(/var/lib/ceph/osd/ceph-1) could not find 23c2fcde/osd_superblock/0//-1 in index: (2) No such file or directory
2014-06-25 23:17:37.812999 7fa8fd06b7a0 -1 created object store /var/lib/ceph/osd/ceph-1 journal /var/lib/ceph/osd/ceph-1/journal for osd.1 fsid f11240d4-86b1-49ba-aacc-6d3d37b24cc4
2014-06-25 23:17:37.813192 7fa8fd06b7a0 -1 auth: error reading file: /var/lib/ceph/osd/ceph-1/keyring: can't open /var/lib/ceph/osd/ceph-1/keyring: (2) No such file or directory
2014-06-25 23:17:37.814050 7fa8fd06b7a0 -1 created new key in keyring /var/lib/ceph/osd/ceph-1/keyring
6、注册osd的认证密钥
[root@node2 ~]# ceph auth add osd.1 osd 'allow *' mon 'allow profile osd' -i /var/lib/ceph/osd/ceph-1/keyring
added key for osd.1
7、为此osd节点创建一个crush map
[[root@node2 ~]# ceph osd crush add-bucket node2 host
added bucket node2 type host to crush map
8、Place the Ceph Node under the root default
[root@node2 ~]# ceph osd crush move node2 root=default
moved item id -3 name 'node2' to location {root=default} in crush map
9、
[root@node2 ~]# ceph osd crush add osd.1 1.0 host=node2
add item id 1 name 'osd.1' weight 1 at location {host=node2} to crush map
10、创建一个初始化目录
[root@node2 ~]# touch /var/lib/ceph/osd/ceph-1/sysvinit
11、启动osd进程
[root@node2 ~]# /etc/init.d/ceph start osd.1
=== osd.1 ===
create-or-move updated item name 'osd.1' weight 0.02 at location {host=node2,root=default} to crush map
Starting Ceph osd.1 on node2...
starting osd.1 at :/0 osd_data /var/lib/ceph/osd/ceph-1 /var/lib/ceph/osd/ceph-1/journal
12、查看osd目录树
[root@node2 ~]# ceph osd tree
# id weight type name up/down reweight
-1 2 root default
-2 1 host node1
0 1 osd.0 up 1
-3 1 host node2
1 1 osd.1 up 1
添加第三块osd节点
1、创建一个OSD，生成一个osd number
[root@node3 ~]# ceph osd create
2
2、为osd节点创建一个osd目录
[root@node3 ~]# mkdir -p /var/lib/ceph/osd/ceph-2
3、格式化已准备好的osd硬盘（格式化为xfs格式）
[root@node3 ~]# mkfs.xfs -f /dev/sdb
meta-data=/dev/sdb isize=256 agcount=4, agsize=1310720 blks
= sectsz=512 attr=2, projid32bit=0
data = bsize=4096 blocks=5242880, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
4、挂在目录
[root@node3 ~]# mount -o user_xattr /dev/sdb /var/lib/ceph/osd/ceph-2
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
执行上面的命令会报错
解决的办法是：用下面的两条命令替代上面的一条命令。
[root@node3 ~]# mount /dev/sdb /var/lib/ceph/osd/ceph-2
[root@node3 ~]# mount -o remount,user_xattr /var/lib/ceph/osd/ceph-2
查看挂载的情况
[root@node2 ~]# mount
/dev/sda2 on / type ext4 (rw)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
tmpfs on /dev/shm type tmpfs (rw)
/dev/sda1 on /boot type ext4 (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
vmware-vmblock on /var/run/vmblock-fuse type fuse.vmware-vmblock (rw,nosuid,nodev,default_permissions,allow_other)
/dev/sdb on /var/lib/ceph/osd/ceph-1 type xfs (rw,user_xattr)
把上面的挂载信息写入分区表
[root@node3 ~]# vi /etc/fstab
/dev/sdb /var/lib/ceph/osd/ceph-2 xfs defaults 0 0
/dev/sdb /var/lib/ceph/osd/ceph-2 xfs remount,user_xattr 0 0
5、初始化osd数据目录
[root@node3 ~]# ceph-osd -i 2 --mkfs --mkkey
2014-06-25 23:29:01.734251 7f52915927a0 -1 journal FileJournal::_open: disabling aio for non-block journal. Use journal_force_aio to force use of aio anyway
2014-06-25 23:29:01.849158 7f52915927a0 -1 journal FileJournal::_open: disabling aio for non-block journal. Use journal_force_aio to force use of aio anyway
2014-06-25 23:29:01.852189 7f52915927a0 -1 filestore(/var/lib/ceph/osd/ceph-2) could not find 23c2fcde/osd_superblock/0//-1 in index: (2) No such file or directory
2014-06-25 23:29:01.904476 7f52915927a0 -1 created object store /var/lib/ceph/osd/ceph-2 journal /var/lib/ceph/osd/ceph-2/journal for osd.2 fsid f11240d4-86b1-49ba-aacc-6d3d37b24cc4
2014-06-25 23:29:01.904712 7f52915927a0 -1 auth: error reading file: /var/lib/ceph/osd/ceph-2/keyring: can't open /var/lib/ceph/osd/ceph-2/keyring: (2) No such file or directory
2014-06-25 23:29:01.905376 7f52915927a0 -1 created new key in keyring /var/lib/ceph/osd/ceph-2/keyring
[root@node3 ~]#
6、注册osd的认证密钥
[root@node3 ~]# ceph auth add osd.2 osd 'allow *' mon 'allow profile osd' -i /var/lib/ceph/osd/ceph-2/keyring
added key for osd.2
7、为此osd节点创建一个crush map
[root@node3 ~]# ceph osd crush add-bucket node3 host
added bucket node3 type host to crush map
8、Place the Ceph Node under the root default
[root@node3 ~]# ceph osd crush move node3 root=default
moved item id -4 name 'node3' to location {root=default} in crush map
9、
[root@node3 ~]# ceph osd crush add osd.2 1.0 host=node3
add item id 2 name 'osd.2' weight 1 at location {host=node3} to crush map
10、创建一个初始化目录
[root@node3 ~]# touch /var/lib/ceph/osd/ceph-2/sysvinit
11、启动osd进程
[root@node3 ~]# /etc/init.d/ceph start osd.2
=== osd.2 ===
create-or-move updated item name 'osd.2' weight 0.02 at location {host=node3,root=default} to crush map
Starting Ceph osd.2 on node3...
starting osd.2 at :/0 osd_data /var/lib/ceph/osd/ceph-2 /var/lib/ceph/osd/ceph-2/journal
12、查看osd目录树
[root@node3 ~]# ceph osd tree
# id weight type name up/down reweight
-1 3 root default
-2 1 host node1
0 1 osd.0 up 1
-3 1 host node2
1 1 osd.1 up 1
-4 1 host node3
2 1 osd.2 up 1
添加第三块osd节点
1、创建一个OSD，生成一个osd number
ceph osd create
2、为osd节点创建一个osd目录
mkdir -p /var/lib/ceph/osd/ceph-3
3、格式化已准备好的osd硬盘（格式化为xfs格式）
mkfs.xfs -f /dev/sdb
4、挂在目录
mount /dev/sdb /var/lib/ceph/osd/ceph-3
mount -o remount,user_xattr /var/lib/ceph/osd/ceph-3
把上面的挂载信息写入分区表
vi /etc/fstab
/dev/sdb /var/lib/ceph/osd/ceph-3 xfs defaults 0 0
/dev/sdb /var/lib/ceph/osd/ceph-3 xfs remount,user_xattr 0 0
5、初始化osd数据目录
ceph-osd -i 3 --mkfs --mkkey
6、注册osd的认证密钥
ceph auth add osd.3 osd 'allow *' mon 'allow profile osd' -i /var/lib/ceph/osd/ceph-3/keyring
7、为此osd节点创建一个crush map
ceph osd crush add-bucket node4 host
8、Place the Ceph Node under the root default
[root@node4 ~]# ceph osd crush move node4 root=default
9、
[root@node4 ~]# ceph osd crush add osd.3 1.0 host=node4
10、创建一个初始化目录
[root@node3 ~]# touch /var/lib/ceph/osd/ceph-3/sysvinit
11、启动osd进程
[root@node4 ~]# /etc/init.d/ceph start osd.3
添加元数据服务器
添加第一个元数据服务器
1、为mds元数据服务器创建一个目录
[root@node1 ~]# mkdir -p /var/lib/ceph/mds/ceph-node1
2、为bootstrap-mds客户端创建一个密钥 注：(如果下面的密钥在目录里已生成可以省略此步骤）
[root@node1 ~]# ceph-authtool --create-keyring /var/lib/ceph/bootstrap-mds/ceph.keyring --gen-key -n client.bootstrap-mds
3、在ceph auth库中创建bootstrap-mds客户端，赋予权限添加之前创建的密钥 注（查看ceph auth list 用户权限认证列表 如果已有client.bootstrap-mds此用户，此步骤可以省略）
[root@node1 ~]# ceph auth add client.bootstrap-mds mon 'allow profile bootstrap-mds' -i /var/lib/ceph/bootstrap-mds/ceph.keyring
added key for client.bootstrap-mds
4、在root家目录里创建ceph.bootstrap-mds.keyring文件
touch /root/ceph.bootstrap-mds.keyring
5、把keyring /var/lib/ceph/bootstrap-mds/ceph.keyring里的密钥导入家目录下的ceph.bootstrap-mds.keyring文件里
ceph-authtool --import-keyring /var/lib/ceph/bootstrap-mds/ceph.keyring ceph.bootstrap-mds.keyring
6、在ceph auth库中创建mds.node1用户，并赋予权限和创建密钥，密钥保存在/var/lib/ceph/mds/ceph-node1/keyring文件里
ceph --cluster ceph --name client.bootstrap-mds --keyring /var/lib/ceph/bootstrap-mds/ceph.keyring auth get-or-create mds.node1 osd 'allow rwx' mds 'allow' mon 'allow profile mds' -o /var/lib/ceph/mds/ceph-node1/keyring
7、为mds创建一个初始化文件用于启动使用（此文件为空文件）
[root@node1 ~]# touch /var/lib/ceph/mds/ceph-node1/sysvinit
8、为了防止重新被安装创建一个空的done文件
[root@node1 ~]# touch /var/lib/ceph/mds/ceph-node1/done
9、情况mds服务进程
[root@node1 ~]# service ceph start mds.node1
=== mds.node1 ===
Starting Ceph mds.node1 on node1...
starting mds.node1 at :/0
添加第二个元数据服务器
1、在node2节点上为mds元数据服务器创建一个目录
[root@node2 ~]# mkdir -p /var/lib/ceph/mds/ceph-node2
2、在node2节点上创建一个bootstrap-mds目录
[root@node2 ~]# mkdir -p /var/lib/ceph/bootstrap-mds/
3、在node1节点上复制/var/lib/ceph/bootstrap-mds/ceph.keyring、/root/ceph.bootstrap-mds.keyring文件到node2节点
[root@node1 ~]# scp /var/lib/ceph/bootstrap-mds/ceph.keyring node2:/var/lib/ceph/bootstrap-mds/
[root@node1 ~]# scp /root/ceph.bootstrap-mds.keyring node2:/root/
4、在node1节点复制/var/lib/ceph/mds/ceph-node1/*里的所有文件到node2
[root@node2 ~]# scp /var/lib/ceph/mds/ceph-node1/sysvinit node2://var/lib/ceph/mds/ceph-node2/
5、在ceph auth库中创建mds.node2用户，并赋予权限和创建密钥，密钥保存在/var/lib/ceph/mds/ceph-node1/keyring文件里
[root@node2 ~]# ceph --cluster ceph --name client.bootstrap-mds --keyring /var/lib/ceph/bootstrap-mds/ceph.keyring auth get-or-create mds.node2 osd 'allow rwx' mds 'allow' mon 'allow profile mds' -o /var/lib/ceph/mds/ceph-node2/keyring
7、为了防止重新被安装创建一个空的done文件
[root@node2 ~]# touch /var/lib/ceph/mds/ceph-node2/done
7、情况mds服务进程
[root@node1 ~]# service ceph start mds.node2
添加第二个元数据服务器
1、在node3节点上为mds元数据服务器创建一个目录
[root@node3 ~]# mkdir -p /var/lib/ceph/mds/ceph-node3
2、在node3节点上创建一个bootstrap-mds目录
[root@node3 ~]# mkdir -p /var/lib/ceph/bootstrap-mds/
3、在node1节点上复制/var/lib/ceph/bootstrap-mds/ceph.keyring、/root/ceph.bootstrap-mds.keyring文件到node3节点
[root@node1 ~]# scp /var/lib/ceph/bootstrap-mds/ceph.keyring node3:/var/lib/ceph/bootstrap-mds/
[root@node1 ~]# scp /root/ceph.bootstrap-mds.keyring node3:/root/
4、在node1节点复制/var/lib/ceph/mds/ceph-node1/*里的所有文件到node3
[root@node3 ~]# scp /var/lib/ceph/mds/ceph-node1/sysvinit node3://var/lib/ceph/mds/ceph-node3/
5、在ceph auth库中创建mds.node2用户，并赋予权限和创建密钥，密钥保存在/var/lib/ceph/mds/ceph-node1/keyring文件里
[root@node3 ~]# ceph --cluster ceph --name client.bootstrap-mds --keyring /var/lib/ceph/bootstrap-mds/ceph.keyring auth get-or-create mds.node3 osd 'allow rwx' mds 'allow' mon 'allow profile mds' -o /var/lib/ceph/mds/ceph-node3/keyring
7、为了防止重新被安装创建一个空的done文件
[root@node3 ~]# touch /var/lib/ceph/mds/ceph-node3/done
7、情况mds服务进程
[root@node1 ~]# service ceph start mds.node3
13、查看集群状态
[root@node1 ~]# ceph -w
cluster f11240d4-86b1-49ba-aacc-6d3d37b24cc4
health HEALTH_OK
monmap e2: 3 mons at {node1=10.240.240.211:6789/0,node2=10.240.240.212:6789/0,node3=10.240.240.213:6789/0}, election epoch 8, quorum 0,1,2 node1,node2,node3
osdmap e23: 3 osds: 3 up, 3 in
pgmap v47: 192 pgs, 3 pools, 0 bytes data, 0 objects
3175 MB used, 58234 MB / 61410 MB avail
192 active+clean
2014-06-25 23:32:48.340284 mon.0 [INF] pgmap v47: 192 pgs: 192 active+clean; 0 bytes data, 3175 MB used, 58234 MB / 61410 MB avail
五、安装客户端client并进行RBD、cephFS挂载
安装软件包
1、安装软件包
[root@ceph-client ceph]#yum install -y ceph
2、升级系统内核
kernel 2.6.34以前的版本是没有Module rbd的，把系统内核版本升级到最新
rpm --import http://elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
yum --enablerepo=elrepo-kernel install kernel-ml
安装完内核后修改/etc/grub.conf配置文件使机器重启后生效
修改配置文件中的 Default=1 to Default=0
RBD方式挂载
1、新建一个ceph pool
[root@client ~]# ceph osd pool create jiayuan 256
2、在pool中新建一个镜像
[root@client ~]# rbd create test-1 --size 40960 -p jiayuan
3、把镜像映射到pool块设备中
[root@client ~]# rbd map test-1 -p jiayuan
4、查看镜像映射map
[root@client ~]# rbd showmapped
id pool image snap device
0 jiayuan test-1 - /dev/rbd0
5、格式化映射的设备块
[root@client ~]# mkfs.ext4 -m0 /dev/rbd0
6、挂载新建的分区
[root@client ~]# mkdir /mnt/ceph-rbd-test-1
[root@client ~]# mount /dev/rbd0 /mnt/ceph-rbd-test-1/
[root@client ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 19G 3.0G 15G 17% /
tmpfs 242M 72K 242M 1% /dev/shm
/dev/sda1 283M 76M 188M 29% /boot
/dev/rbd0 40G 48M 40G 1% /mnt/ceph-rbd-test-1
7、进入新建的分区并dd测试性能
[root@client ~]# cd /mnt/ceph-rbd-test-1/
cephFS挂载
1、创建一个数据目录，把ceph池挂载到创建的数据目录。
[root@ceph-client ~]# mkdir /mnt/mycephfs
[root@ceph-client ~]# mount -t ceph 10.240.240.211:6789:/ /mnt/mycephfs -v -o name=admin,secret=AQDT9pNTSFD6NRAAoZkAgx21uGQ+DM/k0rzxow==
10.240.240.211:6789:/ on /mnt/mycephfs type ceph (rw,name=admin,secret=AQDT9pNTSFD6NRAAoZkAgx21uGQ+DM/k0rzxow==)
或者执行下面的命令挂载
[root@ceph-client ~]# mount -t ceph 10.240.240.211:6789:/ /mnt/mycephfs -v -o name=admin,secretfile=/etc/ceph/ceph.client.admin.keyring
#上述命令中的name和secret参数值来自monitor的/etc/ceph/keyring文件：
[root@node1 ~]# cat /etc/ceph/ceph.client.admin.keyring
[client.admin]
key = AQDT9pNTSFD6NRAAoZkAgx21uGQ+DM/k0rzxow==
2、若果有多个mon监控节点，可以挂载多可节点，保证了cephFS的安全行，当有一个节点down的时候不影响写入数据
[root@client ~]# mount.ceph node1,node2,node3:/ /mnt/mycephfs -v -o name=admin,secret=AQDvxaxTaG4uBRAA9fKTwV8iqPjm/K+B4+qpEw==
parsing options: name=admin,secret=AQDvxaxTaG4uBRAA9fKTwV8iqPjm/K+B4+qpEw==
[root@client ~]#
[root@client ~]#
[root@client ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 19G 3.0G 15G 17% /
tmpfs 242M 72K 242M 1% /dev/shm
/dev/sda1 283M 76M 188M 29% /boot
10.240.240.211,10.240.240.212,10.240.240.213:/
20G 3.5G 17G 18% /mnt/mycephfs
3、把挂载的信息写到fstab里
[root@client ~]# vi /etc/fstab
10.240.240.211,10.240.240.212,10.240.240.213:/ /mnt/mycephfs ceph name=admin,secret=AQDvxaxTaG4uBRAA9fKTwV8iqPjm/K+B4+qpEw==,noatime 0 2
六：ceph集群卸载（执行下面的两条命令就可以把所有节点上的ceph软件及ceph集群卸载掉）
[root@node1 ~]# ceph-deploy purge node1 node2 node3 node4
[root@node1 ~]# ceph-deploy purgedata node1 node2 node3 node4
附录、ceph快速配置脚本
建立第一个mon节点
1、在node1节点编辑ceph配置文件
vi /etc/ceph/ceph.conf
[global]
fsid = f11240d4-86b1-49ba-aacc-6d3d37b24cc4
mon initial members = node1,node2,node3
mon host = 10.39.101.1,10.39.101.2,10.39.101.3
public network = 10.39.101.0/24
auth cluster required = cephx
auth service required = cephx
auth client required = cephx
osd journal size = 1024
filestore xattr use omap = true
osd pool default size = 3
osd pool default min size = 1
osd crush chooseleaf type = 1
osd_mkfs_type = xfs
max mds = 5
mds max file size = 100000000000000
mds cache size = 1000000
mon osd down out interval = 900
cluster_network = 10.39.102.0/24
[mon]
mon clock drift allowed = .50
在node1节点
ceph-authtool --create-keyring /tmp/ceph.mon.keyring --gen-key -n mon. --cap mon 'allow *'
ceph-authtool --create-keyring /etc/ceph/ceph.client.admin.keyring --gen-key -n client.admin --set-uid=0 --cap mon 'allow *' --cap osd 'allow *' --cap mds 'allow'
ceph-authtool /tmp/ceph.mon.keyring --import-keyring /etc/ceph/ceph.client.admin.keyring
mkdir -p /var/lib/ceph/mon/ceph-node1
mkdir -p /var/lib/ceph/bootstrap-osd/
ceph-authtool -C /var/lib/ceph/bootstrap-osd/ceph.keyring
ceph-mon --mkfs -i node1 --keyring /tmp/ceph.mon.keyring
touch /var/lib/ceph/mon/ceph-node1/done
touch /var/lib/ceph/mon/ceph-node1/sysvinit
/sbin/service ceph -c /etc/ceph/ceph.conf start mon.node1
建立第二个mon节点
1、在node2节点
mkdir /var/lib/ceph/bootstrap-osd/
mkdir -p /var/lib/ceph/mon/ceph-node2
2、在node1节点
scp /etc/ceph/* node2:/etc/ceph/
scp /var/lib/ceph/bootstrap-osd/ceph.keyring node2:/var/lib/ceph/bootstrap-osd/
scp /tmp/ceph.mon.keyring node2:/tmp/
3、在node2节点
ceph-mon --mkfs -i node2 --keyring /tmp/ceph.mon.keyring
touch /var/lib/ceph/mon/ceph-node2/done
touch /var/lib/ceph/mon/ceph-node2/sysvinit
/sbin/service ceph -c /etc/ceph/ceph.conf start mon.node2
建立第三个mon节点
1、在node3节点
mkdir /var/lib/ceph/bootstrap-osd/
mkdir -p /var/lib/ceph/mon/ceph-node3
2、在node1节点
scp /etc/ceph/* node3:/etc/ceph/
scp /var/lib/ceph/bootstrap-osd/ceph.keyring node3:/var/lib/ceph/bootstrap-osd/
scp /tmp/ceph.mon.keyring node3:/tmp/
3、在node3节点
ceph-mon --mkfs -i node3 --keyring /tmp/ceph.mon.keyring
touch /var/lib/ceph/mon/ceph-node3/done
touch /var/lib/ceph/mon/ceph-node3/sysvinit
/sbin/service ceph -c /etc/ceph/ceph.conf start mon.node3
添加osd节点
添加第一块osd节点
1、在node1节点
ceph osd create
mkdir -p /var/lib/ceph/osd/ceph-0
mkfs.xfs -f /dev/sdb
mount /dev/sdb /var/lib/ceph/osd/ceph-0
mount -o remount,user_xattr /var/lib/ceph/osd/ceph-0
ceph-osd -i 0 --mkfs --mkkey
ceph auth add osd.0 osd 'allow *' mon 'allow profile osd' -i /var/lib/ceph/osd/ceph-0/keyring
ceph osd crush add-bucket node1 host
ceph osd crush move node1 root=default
ceph osd crush add osd.0 1.0 host=node1
touch /var/lib/ceph/osd/ceph-0/sysvinit
/etc/init.d/ceph start osd.0
2、在node1节点添加分区表
[root@node1 ~]# vi /etc/fstab
/dev/sdb /var/lib/ceph/osd/ceph-0 xfs defaults 0 0
/dev/sdb /var/lib/ceph/osd/ceph-0 xfs remount,user_xattr 0 0
添加第二个osd节点
1、在node2节点
ceph osd create
mkdir -p /var/lib/ceph/osd/ceph-1
mkfs.xfs -f /dev/sdb
mount /dev/sdb /var/lib/ceph/osd/ceph-1
mount -o remount,user_xattr /var/lib/ceph/osd/ceph-1
ceph-osd -i 1 --mkfs --mkkey
ceph auth add osd.1 osd 'allow *' mon 'allow profile osd' -i /var/lib/ceph/osd/ceph-1/keyring
ceph osd crush add-bucket node2 host
ceph osd crush move node2 root=default
ceph osd crush add osd.1 1.0 host=node2
touch /var/lib/ceph/osd/ceph-1/sysvinit
/etc/init.d/ceph start osd.1
2、在node2节点添加分区表
[root@node1 ~]# vi /etc/fstab
/dev/sdb /var/lib/ceph/osd/ceph-1 xfs defaults 0 0
/dev/sdb /var/lib/ceph/osd/ceph-1 xfs remount,user_xattr 0 0
添加第三块osd节点
1、在node3节点
ceph osd create
mkdir -p /var/lib/ceph/osd/ceph-2
mkfs.xfs -f /dev/sdb
mount /dev/sdb /var/lib/ceph/osd/ceph-2
mount -o remount,user_xattr /var/lib/ceph/osd/ceph-2
ceph-osd -i 2 --mkfs --mkkey
ceph auth add osd.2 osd 'allow *' mon 'allow profile osd' -i /var/lib/ceph/osd/ceph-2/keyring
ceph osd crush add-bucket node3 host
ceph osd crush move node3 root=default
ceph osd crush add osd.2 1.0 host=node3
touch /var/lib/ceph/osd/ceph-2/sysvinit
/etc/init.d/ceph start osd.2
2、在node3节点添加分区表
[root@node1 ~]# vi /etc/fstab
/dev/sdb /var/lib/ceph/osd/ceph-2 xfs defaults 0 0
/dev/sdb /var/lib/ceph/osd/ceph-2 xfs remount,user_xattr 0 0
添加第四块osd节点
1、在node1节点
scp /etc/ceph/* node4:/etc/ceph/
2、在node4节点
ceph osd create
mkdir -p /var/lib/ceph/osd/ceph-3
mkfs.xfs -f /dev/sdb
mount /dev/sdb /var/lib/ceph/osd/ceph-3
mount -o remount,user_xattr /var/lib/ceph/osd/ceph-3
ceph-osd -i 3 --mkfs --mkkey
ceph auth add osd.3 osd 'allow *' mon 'allow profile osd' -i /var/lib/ceph/osd/ceph-3/keyring
ceph osd crush add-bucket node4 host
ceph osd crush move node4 root=default
ceph osd crush add osd.3 1.0 host=node4
touch /var/lib/ceph/osd/ceph-3/sysvinit
/etc/init.d/ceph start osd.3
3、在node4节点添加分区表
[root@node1 ~]# vi /etc/fstab
/dev/sdb /var/lib/ceph/osd/ceph-3 xfs defaults 0 0
/dev/sdb /var/lib/ceph/osd/ceph-3 xfs remount,user_xattr 0 0
添加元数据服务器
添加第一个元数据服务器
1、在node1节点
mkdir -p /var/lib/ceph/mds/ceph-node1
touch /root/ceph.bootstrap-mds.keyring
ceph-authtool --import-keyring /var/lib/ceph/bootstrap-mds/ceph.keyring ceph.bootstrap-mds.keyring
ceph --cluster ceph --name client.bootstrap-mds --keyring /var/lib/ceph/bootstrap-mds/ceph.keyring auth get-or-create mds.node1 osd 'allow rwx' mds 'allow' mon 'allow profile mds' -o /var/lib/ceph/mds/ceph-node1/keyring
touch /var/lib/ceph/mds/ceph-node1/sysvinit
touch /var/lib/ceph/mds/ceph-node1/done
service ceph start mds.node1
添加第二个元数据服务器
1、在node2节点
mkdir -p /var/lib/ceph/mds/ceph-node2
mkdir -p /var/lib/ceph/bootstrap-mds/
2、在node1节点
scp /var/lib/ceph/bootstrap-mds/ceph.keyring node2:/var/lib/ceph/bootstrap-mds/
scp /root/ceph.bootstrap-mds.keyring node2:/root/
scp /var/lib/ceph/mds/ceph-node1/sysvinit node2://var/lib/ceph/mds/ceph-node2/
3、在node2节点
ceph --cluster ceph --name client.bootstrap-mds --keyring /var/lib/ceph/bootstrap-mds/ceph.keyring auth get-or-create mds.node2 osd 'allow rwx' mds 'allow' mon 'allow profile mds' -o /var/lib/ceph/mds/ceph-node2/keyring
touch /var/lib/ceph/mds/ceph-node2/done
service ceph start mds.node2
添加第二个元数据服务器
1、在node3节点
mkdir -p /var/lib/ceph/mds/ceph-node3
mkdir -p /var/lib/ceph/bootstrap-mds/
2、在node1节点
scp /var/lib/ceph/bootstrap-mds/ceph.keyring node3:/var/lib/ceph/bootstrap-mds/
scp /root/ceph.bootstrap-mds.keyring node3:/root/
scp /var/lib/ceph/mds/ceph-node1/sysvinit node3://var/lib/ceph/mds/ceph-node3/
3、在node3节点
ceph --cluster ceph --name client.bootstrap-mds --keyring /var/lib/ceph/bootstrap-mds/ceph.keyring auth get-or-create mds.node3 osd 'allow rwx' mds 'allow' mon 'allow profile mds' -o /var/lib/ceph/mds/ceph-node3/keyring
touch /var/lib/ceph/mds/ceph-node3/done
service ceph start mds.node3
本文出自 “zhanguo1110” 博客，谢绝转载！